| Construction: |
| Housing |
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The fan shall be constructed of heavy gauge G90 galvanized steel for maximum corrosion resistance.
Doors are removable for easy access to interior components for service. Intake hood shall be
designed with a large intake area to assure low pressure drop and maximum weather resistance.
Weather hood shall include 2" washable filters and inlet screen to prevent large debris from
clogging filters.
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| Base |
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The base shall be constructed of galvanized steel for improved rigidity. Base shall be
structurally reinforced to accommodate the blower assembly.
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| Blower |
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The blower wheel shall be forward curved centrifugal, constructed G-90 galvanized steel.
Wheels shall be balanced in two planes and done in accordance with AMCA standard 204-96,
Balance Quality and Vibration Levels for Fans. The wheel blades shall be aerodynamically
designed to minimize turbulence, increase efficiency and reduce noise. The wheel blades
shall be securely attached to the wheel inlet ring. The wheel shall be firmly attached
to the fan shaft with set screws and keys. The blower assembly shall be isolated from
the fan structure with vibration isolators.
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| COOLING EQUIPMENT |
| Standard |
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All cooling equipment should conform to local code requirements. All gas manifold
components shall be piped and wired at the factory.
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Components Include:
- 14 SEER minimum condenser
- Thermal Expansion Valve
- Filter/Dryer
- Hard Start Kit for Condenser
- Insulated Suction Lines
- Multiple Stages where required
- Pre Charged System
- R-410A Refrigerant
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| Motor & Motor Compartment |
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Motors shall be heavy duty ball bearing type and furnished at the specified voltage,
phase and enclosure. Motor mounting plate shall be constructed of heavy gauge galvanized
steel and shall be designed to provide easy adjustment of belt tension (belt drive units only).
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| Shaft & Bearings (Belt Drive Units Only) |
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Shafts shall be precision ground and polished. Heavy duty, pre-lubricated bearings shall be
selected for a minimum (L50) life in excess of 200,000 hours of operation at maximum cataloged
operating speed. They shall be designed for, and individually tested specifically for use in
air handling applications.
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| Belts & Drives (Belt Drive Units Only) |
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Belts shall be oil and heat resistant, non-static type. Drives shall be cast type, precision
machined and keyed and secured attached to the fan and motor shafts. Drives shall be sized
for a minimum of 150% of the installed motor horsepower. Fan operating speed shall be factory
set using adjustable pitch motor pulleys.
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| Product: Fan shall be model A Series as manufactured by CaptiveAire Systems. |
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